builders := []Builder{
    NewBuilder(controllerName, func(provider Provider) (interface{}, error) {
        appService := provider.Get(appServiceName).(appService)
        return (controller)(&controllerImpl{appService: appService}), nil
    }),
    NewBuilder(appServiceName, func(provider Provider) (interface{}, error) {
        domainService := provider.Get(domainServiceName).(domainService)
        return (appService)(&appServiceImpl{domainService: domainService}), nil
    }),
    NewBuilder(domainServiceName, func(provider Provider) (interface{}, error) {
        domainObjectA := provider.Get(domainObjectAName).(domainObjectA)
        domainObjectB := provider.Get(domainObjectBName).(domainObjectB)
        return (domainService)(&domainServiceImpl{domainObjectA: domainObjectA, domainObjectB: domainObjectB}), nil
    }),
    NewBuilder(domainObjectAName, func(Provider) (interface{}, error) {
        return (domainObjectA)(&domainObjectAImpl{}), nil
    }),
    NewBuilder(domainObjectBName, func(Provider) (interface{}, error) {
        return (domainObjectB)(&domainObjectBImpl{}), nil
    }),
}

root := Assemble(builders, controllerName).(controller)